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Finding the Fourth Proportional to 139,877.66, 192,973.38 and 97,460.79

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Solution

The fourth proportional to 139,877.66, 192,973.38 and 97,460.79 is: 134,455.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,877.66 : 192,973.38 = 97,460.79 : x
  2. Step 2: Convert to fraction form
    139,877.66/192,973.38 = 97,460.79/x
  3. Step 3: Cross multiply
    139,877.66x = 192,973.38 × 97,460.79
  4. Step 4: Simplify right side
    139,877.66x = 18,807,338,063.77
  5. Step 5: Solve for x
    x = 18,807,338,063.77/139,877.66
  6. Step 6: Final answer
    x = 134,455.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.